Home / 78,692.14-118,073.09-41,243.31

Finding the Fourth Proportional to 78,692.14, 118,073.09 and 41,243.31

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Solution

The fourth proportional to 78,692.14, 118,073.09 and 41,243.31 is: 61,883.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,692.14 : 118,073.09 = 41,243.31 : x
  2. Step 2: Convert to fraction form
    78,692.14/118,073.09 = 41,243.31/x
  3. Step 3: Cross multiply
    78,692.14x = 118,073.09 × 41,243.31
  4. Step 4: Simplify right side
    78,692.14x = 4,869,725,156.64
  5. Step 5: Solve for x
    x = 4,869,725,156.64/78,692.14
  6. Step 6: Final answer
    x = 61,883.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.